Measuring instrument



FIG. 1 is a front perspective view of the measuring instrument;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines in FIG. 3 depict unclaimed environmental subject matter. 

CLAIM The ornamental design for a measuring instrument, as shown. 